hop_clover
1. [ noun ] (botany) prostrate European herb with small yellow flowers and curved black pods; naturalized in North America
Synonyms: yellow_trefoil nonesuch_clover Medicago_lupulina black_medick
Related terms: medic
2. [ noun ] (botany) clover native to Ireland with yellowish flowers; often considered the true or original shamrock
Synonyms: lesser_yellow_trefoil Trifolium_dubium shamrock
Related terms: clover